CN103961122B - 用于非等γ角CT系统中数据转换的方法和装置 - Google Patents

用于非等γ角CT系统中数据转换的方法和装置 Download PDF

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Publication number
CN103961122B
CN103961122B CN201310037988.4A CN201310037988A CN103961122B CN 103961122 B CN103961122 B CN 103961122B CN 201310037988 A CN201310037988 A CN 201310037988A CN 103961122 B CN103961122 B CN 103961122B
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China
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projection data
beam projection
parallel beam
data
fan
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Chinese (zh)
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CN103961122A (zh
Inventor
李军
李硕
钟娟
董加勤
A.拉瓦特
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General Electric Co
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General Electric Co
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Priority to CN201310037988.4A priority Critical patent/CN103961122B/zh
Priority to IN319CH2014 priority patent/IN2014CH00319A/en
Priority to US14/165,957 priority patent/US9443278B2/en
Priority to JP2014015093A priority patent/JP6446178B2/ja
Publication of CN103961122A publication Critical patent/CN103961122A/zh
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/005—Robust watermarking, e.g. average attack or collusion attack resistant
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T12/00—Tomographic reconstruction from projections
    • G06T12/10—Image preprocessing, e.g. calibration, positioning of sources or scatter correction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/032—Transmission computed tomography [CT]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
    • A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
    • A61B6/4233—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using matrix detectors
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5205—Devices using data or image processing specially adapted for radiation diagnosis involving processing of raw data to produce diagnostic data

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medical Informatics (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biomedical Technology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Computer Vision & Pattern Recognition (AREA)
CN201310037988.4A 2013-01-31 2013-01-31 用于非等γ角CT系统中数据转换的方法和装置 Active CN103961122B (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201310037988.4A CN103961122B (zh) 2013-01-31 2013-01-31 用于非等γ角CT系统中数据转换的方法和装置
IN319CH2014 IN2014CH00319A (enExample) 2013-01-31 2014-01-27
US14/165,957 US9443278B2 (en) 2013-01-31 2014-01-28 Method and apparatus for data conversion in an unequal gamma angle CT system
JP2014015093A JP6446178B2 (ja) 2013-01-31 2014-01-30 不等γ角度計算機式断層写真法システムにおけるデータ変換のための方法及び装置
JP2018174352A JP6680844B2 (ja) 2013-01-31 2018-09-19 不等γ角度計算機式断層写真法システムにおけるデータ変換のための方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310037988.4A CN103961122B (zh) 2013-01-31 2013-01-31 用于非等γ角CT系统中数据转换的方法和装置

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CN103961122A CN103961122A (zh) 2014-08-06
CN103961122B true CN103961122B (zh) 2018-07-31

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US (1) US9443278B2 (enExample)
JP (2) JP6446178B2 (enExample)
CN (1) CN103961122B (enExample)
IN (1) IN2014CH00319A (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110660123B (zh) * 2018-06-29 2021-08-31 清华大学 基于神经网络的三维ct图像重建方法和设备以及存储介质
CN109961489B (zh) * 2019-03-29 2023-05-16 上海联影医疗科技股份有限公司 Ct图像重建方法和装置
CN110428478B (zh) * 2019-07-15 2021-09-24 清华大学 交替光源扇束x射线ct采样方法及装置
CN111476860B (zh) * 2020-04-22 2023-10-24 上海联影医疗科技股份有限公司 图像重建方法、装置、计算机设备和存储介质
CN113017668B (zh) * 2021-02-23 2022-06-14 明峰医疗系统股份有限公司 一种基于非柱面探测器的ct图像重建方法及ct扫描仪

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570224A (en) * 1982-11-29 1986-02-11 Elscint, Inc. Combining rebinned and unrebinned parallel ray data with unequal lateral spacing to create tomograph images
CN1968654A (zh) * 2004-06-16 2007-05-23 株式会社日立医药 放射线断层像摄影装置
US7245755B1 (en) * 2002-07-10 2007-07-17 Xiaochuan Pan Algorithm for image reconstruction and image noise analysis in computed tomography
CN101023448A (zh) * 2004-02-10 2007-08-22 芝加哥大学 成像系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4852132A (en) 1985-08-30 1989-07-25 Yokogawa Medical Systems Method of collecting data for x-ray tomograph
US5216601A (en) 1989-11-22 1993-06-01 General Electric Company Method for fan beam helical scanning using rebinning
US6411670B1 (en) 1999-11-17 2002-06-25 General Electric Company Data rebinning to increase resolution in CT image reconstruction
US6775347B2 (en) * 2002-05-29 2004-08-10 Ge Medical Systems Global Technology Company Methods and apparatus for reconstructing an image of an object
JP4360817B2 (ja) * 2002-10-18 2009-11-11 株式会社日立メディコ 放射線断層撮影装置
JP4553894B2 (ja) * 2003-02-14 2010-09-29 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 正確な再構成を伴うヘリカルコーンビームコンピュータトモグラフィのためのシステム及び方法
EP1828985A1 (en) * 2004-11-24 2007-09-05 Wisconsin Alumni Research Foundation Fan-beam and cone-beam image reconstruction using filtered backprojection of differentiated projection data
JP2007159878A (ja) * 2005-12-15 2007-06-28 Ge Medical Systems Global Technology Co Llc Ｘ線ｃｔ装置およびそのｘ線ｃｔ画像再構成方法
JP4884765B2 (ja) * 2005-12-27 2012-02-29 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｘ線ｃｔ装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4570224A (en) * 1982-11-29 1986-02-11 Elscint, Inc. Combining rebinned and unrebinned parallel ray data with unequal lateral spacing to create tomograph images
US7245755B1 (en) * 2002-07-10 2007-07-17 Xiaochuan Pan Algorithm for image reconstruction and image noise analysis in computed tomography
CN101023448A (zh) * 2004-02-10 2007-08-22 芝加哥大学 成像系统
CN1968654A (zh) * 2004-06-16 2007-05-23 株式会社日立医药 放射线断层像摄影装置

Also Published As

Publication number Publication date
US9443278B2 (en) 2016-09-13
IN2014CH00319A (enExample) 2015-04-03
CN103961122A (zh) 2014-08-06
JP2019018030A (ja) 2019-02-07
US20140211908A1 (en) 2014-07-31
JP6680844B2 (ja) 2020-04-15
JP6446178B2 (ja) 2018-12-26
JP2014147752A (ja) 2014-08-21

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